Which r-value represents the weakest correlation? –0.75 –0.27 0.11 0.54
1 answer:
Answer:
0.11
Step-by-step explanation:
Strongest correlation:
The strongest correlations happen for and
, that is, when r has the higher absolute value.
In this question:
The value of r with the lowest correlation is the one with the lowest absolute value(absolute value of -0.75 is 0.75 for example), so it is 0.11, which is the answer.
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Note that A and D are ludicrous choices, so you can throw them away outright. (Any divergent series cannot have a sum, and any convergent series must have a sum.)
The sum is certainly convergent because it can be written as a geometric sum with common ratio between terms that is less than 1 in absolute value.
We can then find the exact value of the sum:
So the answer is B.
The sum is certainly convergent because it can be written as a geometric sum with common ratio between terms that is less than 1 in absolute value.
We can then find the exact value of the sum:
So the answer is B.